Let me know if you have questions
no 1 you are spot on ball at rest in grass
2 if car stops people keep going newton 1 until the window tries to stop them seatbelts
3 yup to go forward he pushes boat back and may get wet
4 yup f=ma bigger f biggger a further it goes good game golf
5 bike and boy are moving but what about air resistance ?
6 if it's that the heavy mass doesn't go as far as the lighter masss f=ma f same m,a different then yes